SKF Insulated Bearing

About SKF Insulated Bearing

SKF Insulated Bearingare designed to prevent current from passing through the bearing. The bearings are a very cost-effective solution compared with other insulation methods. By integrating the insulating properties into the bearing, SKF INSOCOAT bearings can improve reliability and increase machine uptime by virtually eliminating the problem of electrical erosion.

Insocoat Bearings:

Electric motors, generators and associated equipment are at risk when an electric current passes through a bearing. This can damage the contact surfaces of rolling elements and raceways in the bearing (electrical erosion) and rapidly degrade the grease. An additional risk in electric motors and generators comes from high frequency currents due to the inherent stray capacitance. The risk of damage increases if the application uses a frequency converter.

Insocoat Bearings:

An SKF Insocoat bearing is a standard bearing that has the outside surfaces of its inner or outer ring plasma-sprayed with an aluminium- oxide to form a coating. The coating is sealed with a resin to protect against the conductive effects of water and moisture. The basic coating can withstand voltages up to 1 000 V DC. However, coatings to withstand voltages up to 2 000, or even 3 000 V DC can be supplied on request.

Insocoat bearings with a coated outer ring:

Insocoat bearings typically have the outside diameter and side faces of the outer ring coated with aluminium-oxide. These bearings are identified by the designation suffix VL0241.

INSOCOAT bearings with a coated inner ring:

Insocoat bearings that have the bore and side faces of the inner ring coated are identified by the designation suffix VL2071. These bearings provide enhanced protection against high frequency electric currents due to the smaller coated surface area of the inner ring compared to the outer ring.

Assortment:

The standard assortment of insocoat bearings constitutes the most commonly used sizes and variants of:

• Single row deep groove ball bearings
• Single row cylindrical roller bearings

Advanced Ceramic Insulation for Electrical Reliability

Featuring a plasma spray ceramic coating, this SKF bearing resists electrical arcing by withstanding up to 1000 volts. The advanced insulation technology protects sensitive machinery like electric motors and generators, extending operational life and improving reliability under electrically stressful conditions.


Engineered for Heavy Duty Performance

Built from chrome steel with a steel cage and durable insulated coating, the bearing is designed for rigorous applications. It boasts a dynamic load rating of 112 kN and can handle a static load of 74 kN. Its single-row deep groove configuration ensures stability, efficiency, and low noise, even at its maximum speed of 5000 rpm.


Optimal Sizing and Protective Shields

With a 100 mm bore, 180 mm outside diameter, and a width of 34 mm, this bearing fits a wide range of industrial setups. The steel shields enhance longevity by guarding against contaminants, making it suitable for continuous-duty environments and demanding installations across India.